“Don't be too ambitious. Do the most important thing you can think of doing every year and then your career will take care of itself.”

“One of the most important things one can do in life is to brutally question every single thing you are taught.”

“Don't let anyone take care of you. Can you maybe leave that for me to do? I mean, take care of you? Feel free to take care of me in return... because I think I'll need you to do that.”

“If you say that getting the money is the most important thing, you'll spend your life completely wasting your time. You'll be doing things you don't like doing in order to go on living, that is to go on doing thing you don't like doing, which is stupid.”

“Do not trouble about those who practice philosophy, whether they are good or bad; but examine the thing itself well and carefully. And if philosophy appears a bad thing to you, turn every man from it, not only your sons; but if it appears to you such as I think it to be, take courage, pursue it, and practice it, as the saying is, 'both you and your house.”

“If anyone wants to save the planet, all they have to do is just stop eating meat. That's the single most important thing you could do. It's staggering when you think about it. Vegetarianism takes care of so many things in one shot: ecology, famine, cruelty.”